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W. l. W A L K. E lt, O l*1 S A L E ll l (l W A.

Lcftvrs Patent 1Y0. 69,510, lated Humber l, '1807.

IMPROVEMENT IN LOOMS.

dige tlgtbult tcfttnt to' in tlgte ttttttt @tout :nit milking pant tf tta time.

T0 ALL WHOM IT MAY CONCERN:

Be it known that W. B. WALKER, of Salem, in the county of Henry, and Stute of Iowa, have invented a new and useful Improvemcntin Looms; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the sti-me, rrferei'ice being had to the accompanying drawings, forming part of this specification, in which- Figure 1 represents a plan or top view of this invention.

Figure 2 isa transverse vertical section of the same, taken in the plane indicated bythe line .fr a, fig. l.

Figure 3 is a front view of the same.

Figure 4 is a. sectional end view of the same.

Similar letters ofl reference indicate like parts.

A represents the arms or extensions of the lay. bis a downward projection on the outer end of each arm of the lay, to which are pivoted the pickers or drivers ff. c c are springs, attached to the under side of each arm of the l'ay, and fastened near the swords for the purpose of'operating the pickers ff. il d are arms or projections extending at right angles from the pickers, and with their upper edges so shaped that the convex surface of the outer ends of the springs c c will bear upon the convex portion of the arms throughout the entire movement of the pickers with the full power of the springs. The upper part of the pickers extends up through slots v v, irl the ends of the extensions of the lay, into a mortise inthe picker-blocks g g, for the purpose of driving the shuttle from side t'o side of the web. The lower points of the pickers e e, as the lay is brought forward, pass around the bent ends and to the inner side of the springs iz', and as the lay moves backward they are received by the set-springs (or catches) r 7*, and the pickers are held on the half-set while the lay is back. As the la'y comes forward the set-springs follow, andthe lower end of the picker is received by the guide-spring j, and is guided beyond the end of the springs k 7c, then at the backward motion of the lay it is guided to the back end of said .springs k c, where it flies oft' and the pickerdzlocks g g hit the shuttle and throw it to the other side of the web. 'lhus the pickers alternate und drive the shuttle back and forth by means of the combined motion of the lay, pickers, and springs, as described. When one picker drives the shuttle from one end of t'he'lay the other is held by the set-spring or catches in the other end of the lay, ready to be'released at the next backward movement of the lay and send the shuttle back. After the picker passes beyond the guidespring j the spring closes behind it, and guides the picker during the next forward movement ofthe lay beyond the lend of the spring r, which presses against the spring 7' and compels the picker-arm in its backward movement to pass to the outer sido of the spring lc and thus complete its backward movement, where it comes in contact with spring t' to prevent its returning by the same way, and thus facilitating the setting of the picker for driving the shuttle. The set-springs or catches 7 yr are so constructed that they form at their upper ends a right angle. The outer leg of the angle which holds tho picker on the set is received between the ends of the springs t' and y', in n. place, 8 8, prepared for it on the inside of the back endof the spring i. The springs pass down through mortises t t in the platform i Z, and are fastened to elbows s s. The elbows are fastened to the bottom of the platforms, and the platforms are fastened on the top edge of the side pieces of the loom, for the purpose of .holding the guidesprings. 'lhe pickers are pivoted by bolts passing through the downward projections b b. There is a slot, t t', in the cud of each arm of the lay, for the purpose of giving the picker sufiieient motion to drive the shuttle. The guide-springs it', jj, and c 7c may be fastened to the platform by means of metal plates,

as shown, er they may be fastened to strips of wood and then fastened to the platform. lhe guidesprings are arranged and set on the 'platform in such a manner as that each spring shall give more set to the picker as it passes from one to the other, or they may be set so that one or two of them may give the full ser, each spring closing behind the picker as it passes to prevent its returning until it has hit the shuttle. The springs t' are bent outward at the loose or outer ends, and turned in at the top edge, so us to be somewhat spiral-shaped, to receive the end of the pickel' as the lay passes bach and forth, and commente to give the set to thc picker. The projections u u, under the sides ofthe loom, and attached to them, form the bearings for the pivots of the swords of the lay, so as to give more sweep to the picker-motion on the gnide-springs, thereby giving sufficient motion to the pic-ker to force the shuttle from side to side of the web.

T is a cloth-beam, with the bearing on the end passing through and extending beyond the side ofthe loom, and to this benringis attached a spring., x", in form of a clock-spring, which, 'when wound np, will in nnwinding take up the cloth just as fast as it is woven and convey ii to the ri i-eiving-beaiu below. rPhe spring tnlt'es up the slack portion ot" the cloth produced by the bemin;` np oi" the lay. 2 is :t loose ratchet-wheel, haring ou the back side a piu to which thc outer end of the springr is attached, and is wound up by turning the rutelicbwheel by means of the handle 5. ti is a detent or pawl, to hold the spring when wound up. Sis a ratchet-collar, iliade fast to the axle or giidgcon ot' the beam, and the sprint;y iheld wound up by the catch 4, so that it has no power. and the beam may be turned either way und thi` cloth nound otf` if required. taise the pnwl G clear from the ratcltct-nlieel 2, and the .spring can be wound up, :ind `vet the benin is at liberty to roll either way. when you Want to weave again li-op detent ti into ratchet il. air-l throw oil' catch 4 from ratchet-collar 3, and thc force of the spring is again on the clean-beam T, and you are ready again for weaving. Should thc spring prove too `"tron:l I apply a brake, i5, to the eloth-beain. as `een in the drawing.

The surface of' the cloth-beam T is provided with short pins, or covered with cards' to malte it suiliciently rough to retain thc cloth as the beam turns, and thus talie up the saine and com ey it to the hcaiu below, the outer end of the cloth being fastened to the lower benin. 'lhe lower or extra beam may be placed below. or in any position most convenient to talicaip benin. as shown in the drawing. The web will pass' behind both beams, under thi` lower beam, then up over the tithe-up beaux 7, down behind it, and it is fastened to the lower beam. The rough surface of the take-up bcuin T talies up the cloth, and the cloth acts as a belt to turn the lower beam. The lower benin receives all the cloth as fast as woven, and docs not interfere with the tiilt'c-iip by an increase of its diameter, :1s is the case where hut one beam is used, the cloth simply passing over the upper siii'- i'ace of the take-up beam. This extra beam I will call the rcceivingvbcam.

what I claim :1s iny invention, and wish to :'ecure by Letters latcnt, is,

1. The consti tiction and arrangement ot' the downward projecting arins I; l .slotted longitudinally, in which the pickers ffm-e pivoted, and supporting the piclieibloclis j; y, which are inortised to receive and enclose the upper ends of said picli'crs ns herein shown and described, for the purpose specified.

2. 'lhe pickers f f, one in thc end of each urm or exterior ot' the lay` with the projections or arnis Z d, having a convex point, and being concave from that to thc main body of' thir` picker, substantially as described und for the purposes set forth.

3. The main-springs c c, with the outer end convex or bent up to winli un the convex point of the projection d il of thc arms of the picker, substantially as described and for the purposes set forth.

4. The arrangement and couiliiinntion of the platforms l I fastened on the top of the sides of thc leoni, with and for the purpose of` holding the guide-springs i' {,jj, and /c le, also thc set springs or catches 1' r, and elbows` .v s, to which the set-springs are attached, substantially as described and for the purposes sot forth.

5. rflic cloth-benin T, with the ratchets fl and 3 attached, and the .sui-tace covered by cards or filled nith pins, the spring s" and pawls 4 and (i, substantially as described and for the purpose set forth.

6. The extra cloth-beuin or receiving-beam, on which the web will be received by thc action ot' the talt'e-up benin, in combination with the take-up beams, constructed and operated u described.

W. B. WALIx'Elt.

Witnesses:

Axrnoxi IIiiuiiaTT, A. J. Wi'rimow. 

